Rogue Wave Views Foundation Package API Reference Guide |
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Interactor to resize graphic objects. More...
#include <ilviews/graphics/inter.h>
Public Member Functions | |
virtual void | doIt (IlvGraphic *object, IlvRect &rect, const IlvTransformer *t=0) |
Finalizes the interaction by resizing the object. More... | |
virtual void | drawGhost (IlvRect &rect, IlvView *view) |
Visual feedback during the interaction. More... | |
virtual IlBoolean | handleEvent (IlvGraphic *obj, IlvEvent &event, const IlvTransformer *t) |
Handles events received by the interactor. More... | |
virtual void | validate (IlvGraphic *obj, IlvRect &rect, const IlvTransformer *t=0) |
Allows you to modify the intermediate rectangle during the interaction. More... | |
Public Member Functions inherited from IlvInteractor | |
virtual void | abort (IlvGraphic *obj) |
Aborts the interactor. More... | |
virtual IlBoolean | accept (const IlvGraphic *obj) const |
Indicates whether the current interactor can be associated with a given object. More... | |
virtual void | endOperation () |
Performs the actions needed when the interaction ends. More... | |
virtual void | getCallbackTypes (IlUInt &count, const char *const **names, const IlSymbol *const **types) const |
Gets the number of register callback types for the interactor. More... | |
const char * | getRegisteredName () const |
Returns the name of the predefined shared instance. More... | |
IlBoolean | isAborted () const |
Indicates whether the current interactor is in an aborted state. More... | |
IlBoolean | isInOperation () const |
Indicates whether the current interactor is in an interaction state. More... | |
void | lock () |
Locks the current instance. Increments the counter that is used to know how many objects reference the current instance. More... | |
virtual void | startOperation () |
Performs the actions needed when the interaction starts. More... | |
void | unLock () |
Unlocks the current instance. Decrements the reference counter. When the counter drops down to zero, the current instance is deleted. More... | |
Additional Inherited Members | |
Static Public Member Functions inherited from IlvInteractor | |
static IlvInteractor * | Get (const char *name, IlBoolean=IlTrue) |
Returns a predefined shared interactor instance. More... | |
Interactor to resize graphic objects.
Library: views
The IlvReshapeInteractor
class lets the user resize an object by dragging its bounding box with the middle mouse button.
The registered name of this interactor is "Reshape".
IlvMoveInteractor
, IlvMoveReshapeInteractor
.
|
virtual |
Finalizes the interaction by resizing the object.
Called to resize the object to the new geometry provided by rect. After reshaping the object, this method calls the object's callback corresponding to the Reshape symbol.
object | The graphic object. |
rect | The rectangle, in the object coordinate system. |
t | The transformer applied to the view. |
IlvGraphic::setCallback()
Visual feedback during the interaction.
Called to draw a preview image of the resulting user action. It is generally invoked by handleEvent()
as a response to user events.
rect | The rectangle. |
view | The view where the object is displayed. |
|
virtual |
Handles events received by the interactor.
This method is the entry point of all events dispatched to this interactor.
g | The graphic object that receives the event. |
event | The received event. |
t | The transformer applied to the view in which the event occurred. |
IlTrue
if the event was successfully handled and IlFalse
otherwise. Implements IlvInteractor.
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virtual |
Allows you to modify the intermediate rectangle during the interaction.
Called for each mouse movement to modify the bounding box. The rectangle is provided in the view coordinate system and can be modified to satisfy any given constraint. When the mouse button is released, the IlvReshapeInteractor::doIt()
method is called.
obj | The graphic object. |
rect | The rectangle provided by the interaction. |
t | The transformer applied to the view. |
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